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Get Base64 encode file-data from Input Form
...other voodoo magic before you upload.
There are two methods:
Convert to string and use the built-in btoa or similar
I haven't tested all cases, but works for me- just get the char-codes
Convert directly from a Uint8Array to base64
I recently implemented tar in the browser. As part of that p...
“Unknown class in Interface Builder file” error at runtime
...ompiled from the .xib) is loaded at runtime, MyClass is referenced using a string, but the linker doesn't analyze code functionality, just code existence, so it doesn't know that. Since no other source files references that class, the linker optimizes it out of existence when making the executable....
Add leading zeroes to number in Java? [duplicate]
...its, and I feel like it should be in the library somewhere (like Integer.toString(x,"%3d") or something)
5 Answers
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Multiline strings in JSON
...ing some data files in JSON format and would like to have some really long string values split over multiple lines. Using python's JSON module I get a whole lot of errors, whether I use \ or \n as an escape.
...
What is the most efficient way to deep clone an object in JavaScript?
...nly supported by Firefox . I've done things like obj = JSON.parse(JSON.stringify(o)); but question the efficiency. I've also seen recursive copying functions with various flaws.
I'm surprised no canonical solution exists.
...
Scalar vs. primitive data type - are they the same thing?
... structs, etc. A scalar is a "single" value - integer, boolean, perhaps a string - while a compound is made up of multiple scalars (and possibly references to other compounds). "Scalar" is used in contexts where the relevant distinction is between single/simple/atomic values and compound values.
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How to return an array from JNI to Java?
...e the return value. If you wanted to create a single dimensional array of Strings then you'd use the NewObjectArray() function but with a different parameter for the class.
Since you want to return an int array, then your code is going to look something like this:
JNIEXPORT jintArray JNICALL Ja...
simple HTTP server in Java using only Java SE API
...t.httpserver.HttpServer;
public class Test {
public static void main(String[] args) throws Exception {
HttpServer server = HttpServer.create(new InetSocketAddress(8000), 0);
server.createContext("/test", new MyHandler());
server.setExecutor(null); // creates a default e...
Difference between BYTE and CHAR in column datatypes
...
Let us assume the database character set is UTF-8, which is the recommended setting in recent versions of Oracle. In this case, some characters take more than 1 byte to store in the database.
If you define the field as VARCHAR2(11 BYTE), Oracle can us...
Calculating distance between two points, using latitude longitude?
...distanceAlgorithm;
public class CalDistance {
public static void main(String[] args) {
// TODO Auto-generated method stub
CalDistance obj=new CalDistance();
/*obj.distance(38.898556, -77.037852, 38.897147, -77.043934);*/
System.out.println(obj.distance(38.898556, -77.037...